Relational databases are designed for multiple simultaneous users, and Microsoft SQL Server is no different. However, supporting multiple users requires some form of concurrency control, which in SQL Server's case means transaction isolation and locking. Read on to learn how SQL Server 2008 implements locking.
Latest SQL Server Articles
Using LINQ with Dynamic Where Clauses
Do you need to create Dynamic Where Clauses at runtime? No need to use string concatenation with SQL, LINQ is fully capable of performing the same task.
SQL Server Modeling Services with Microsoft Visual Studio 2010 Beta 2
Learn how to use SQL Modeling Services to hunt for interdependencies without having to access source code.
SELECT, INSERT, UPDATE with the SQL MERGE Statement
In today's column we'll demonstrate how and when to use the new TSQL MERGE statement and how this can be a helpful addition to your toolbox.
SQL Server 2008 Policy Management
Learn how to define policies and use them to better manage your SQL Server 2008 instances.
Writing UDFs for Firebird Embedded SQL Server
This article was written mainly for developers who use Firebird Embedded SQL Server in .Net framework applications and want to speed up or optimize DB queries. We will describe how to create your own native Firebird extension and show some approaches how to use it in managed code applications.
Latest Developer Videos
More...Latest CodeGuru Developer Columns

Control Statements and Basic Loops in C++/CLI
Become more proficient on the usage of statements to control the flow of execution through a C++/CLI application.

Processing Things in C# with the Process Class
Explore new ways to run processes under Windows. Some might even surprise you.

Switching Input Languages Dynamically with Visual Basic
You can change your input language dynamically. Make it easier for those who speak other languages to use your software.
Maker Project: Creating a Garage Door Opener
Have you ever wanted to control your garage door from your smartphone? Here is your chance. Get your hands dirty with an Arduino Garage Door Controller.